chuck up the sponge vs throw in the towel

chuck up the sponge and throw in the towel both are verbs.

Word	Noun	Adjective	Verb	Adverb
chuck up the sponge	No	No	Yes	No
throw in the towel	No	No	Yes	No

As verbs, chuck up the sponge and throw in the towel are synonyms defined as:

chuck up the sponge and throw in the towel: give up in the face of defeat of lacking hope; admit defeat

Other synonyms of chuck up the sponge include drop by the wayside, drop out, fall by the wayside, give up, quit, throw in.

chuck up the sponge (verb)	throw in the towel (verb)
give up in the face of defeat of lacking hope; admit defeat	give up in the face of defeat of lacking hope; admit defeat